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Table 2
Stellar properties for HD 1397.
| Property | Value | Source |
|---|---|---|
| Other names | ||
| 2MASS ID | J00174714-6621323 | 2MASS |
| Gaia ID DR2 4707634458245031552 | Gaia | |
| TIC ID | 394137592 | TESS |
| TOI | TOI-120.01 | TESS |
| Astrometric properties | ||
| RA | 00:17:47.14 | TESS |
| Dec | −66:21:32.35 | TESS |
| μRA (mas yr−1) | 64.762 ±0.049 | Gaia |
| μDec (mas yr−1) | −5.055 ±0.041 | Gaia |
| Parallax (mas) | 12.609 ±0.027 | Gaiaa |
| Distance (pc) | 79.31 ± 0.17 | Gaiaa |
| Photometric properties | ||
| V (mag) | 7.868 ± 0.02 | Tycho |
| B (mag) | 8.75 ±0.02 | Tycho |
| G (mag) | 7.59 ± 0.02 | Gaia |
| T (mag) | 7.14 ± 0.03 | TESS |
| J (mag) | 6.442 ± 0.02 | 2MASS |
| H (mag) | 6.090 ± 0.04 | 2MASS |
| Ks (mag) | 5.988 ± 0.02 | 2MASS |
| W1 (mag) | 6.018 ± 0.096 | WISE |
| W2 (mag) | 5.898 ± 0.043 | WISE |
| W3 (mag) | 5.988 ± 0.30 | WISE |
| W4 (mag) | 5.921 ± 0.10 | WISE |
| AV | 0.034 ± 0.02 | Sect. 3.3 |
| Bulk properties | This work: | |
| Teff (K) | 5521 ± 60 | Sect. 3.1 and 3.3 |
| log g (cm s−2) | 3.823 ± 0.02 | Sect. 3.3 |
| ρ (g cm−3) | 0.147 ± 0.01 | Sect. 3.3 |
| [Fe/H] | 0.29 ± 0.09 | Sect. 3.1 and 3.3 |
| v sin i (km s−1) | <2 | Sect. 3.1 |
| Age (Gyrs) | 4.51 ± 0.5 | Sect. 3.3 |
| Mass (M⊙) |  |
Sect. 3.3 |
| Radius (R⊙) |  |
Sect. 3.3 |
Notes. (a) We have added 0.07 mas to the Gaia parallax, see Sect. 3.3 for more information.
References.Tycho (Høg et al. 2000); 2MASS (Skrutskie et al. 2006); WISE (Wright et al. 2010); Gaia (Gaia Collaboration 2018).
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